Question 1

Splitting of a node might be followed by pruning if necessary in a classification tree.

Accepted Answer

A) True 
 B)False

Question 2

SCENARIO 17-3
The tree diagram below shows the results of the classification tree model that has been constructed to predict the probability of a cable company's customers who will switch ("Yes" or "No")into its bundled program offering based on the price ($30,$40,$50,$60)and whether the customer spends more than 5 hours a day watching TV ("Yes" or "No")using the data set of 100 customers collected from a survey.
    
-Referring to Scenario 17-3,the first split occurs at what price?

Accepted Answer

The answer of SCENARIO 17-3
The tree diagram below shows the...

Question 3

SCENARIO 17-2
The treemap below shows the amounts (size)measured in billions of US dollars and percentage changes from prior year (color)of business-to-consumer ecommerce sales last year for North America,Asia Pacific,Western Europe,Central & Eastern Europe,Latin America,and Middle East & Africa.
  
-Referring to Scenario 17-2,the North America region has the fastest growth in business-to-consumer ecommerce sales last year.

Accepted Answer

A) True 
 B)False

Question 4

SCENARIO 17-1
The table below contains the sparklines for the rates of return (in percentage)for three different stocks from 2007 to 2013.
 
-Referring to Scenario 17-1,the sparklines enable you to conclude that the rates of return of the stock market in general are volatile from 2007 to 2013.

Accepted Answer

A) True 
 B)False

Question 5

Neural networks use the validating data to uncover a model and then the training data to see if the model can make the correct prediction or classification.

Accepted Answer

A) True 
 B)False

Question 6

Dashboards may contain all but which of the following?

Accepted Answer

A) Treemaps 
B) Gauges 
C) Contingency table 
D) Bullet graphs 
A) Treemaps 
B) Gauges 
C) Contingency table 
D) Bullet graphs

Question 7

Data mining is used mostly in the mining industry.

Accepted Answer

A) True 
 B)False

Question 8

SCENARIO 17-4
The regression tree below was obtained for predicting the weekend box office revenue of a newly released movie (in thousands of dollars)based on data collected in different cities on the expenditure (at $25,$30,$35,$40,$45,$50,$55,$60,$65 or $70 thousand)spent on TV advertising and the number of times (10,15,20,25,30 or 35)a day the advertisement appear on TV.
  
-Referring to Scenario 17-4,what percentage of the variation in weekend box office revenue can be explained by the amount spent on TV advertising and the number of times a day the advertisement appear on TV?

Accepted Answer

The answer of SCENARIO 17-4
The regression tree below was obtained...

Question 9

Splitting is always followed by pruning in a classification tree.

Accepted Answer

A) True 
 B)False

Question 10

Average linkage can be used to measure the distance between clusters in cluster analysis.

Accepted Answer

A) True 
 B)False

Question 11

The Akaike information criteria (AIC)or the corrected Akaike information criteria (AICc)is a measure of the probability that can be attributed to the response that has occurred.

Accepted Answer

A) True 
 B)False

Question 12

The LogWorth statistic is a measure of the probability that can be attributed to the response that has occurred.

Accepted Answer

A) True 
 B)False

Question 13

SCENARIO 17-3
The tree diagram below shows the results of the classification tree model that has been constructed to predict the probability of a cable company's customers who will switch ("Yes" or "No")into its bundled program offering based on the price ($30,$40,$50,$60)and whether the customer spends more than 5 hours a day watching TV ("Yes" or "No")using the data set of 100 customers collected from a survey.
    
-Referring to Scenario 17-3,the highest probability of switching is predicted to occur among customers who watch more than 5 hours of TV a day and are offered the bundled price of lower than $50.

Accepted Answer

A) True 
 B)False

Question 14

SCENARIO 17-4
The regression tree below was obtained for predicting the weekend box office revenue of a newly released movie (in thousands of dollars)based on data collected in different cities on the expenditure (at $25,$30,$35,$40,$45,$50,$55,$60,$65 or $70 thousand)spent on TV advertising and the number of times (10,15,20,25,30 or 35)a day the advertisement appear on TV.
  
-Referring to Scenario 17-4,how many cities were used in generating the regression tree?

Accepted Answer

The answer of SCENARIO 17-4
The regression tree below was obtained...

Question 15

The forward-and-backward computation among the three layers of a multilayer perceptron is repeated until the output layer detects that the difference between the predicted results and the target values has been minimized or is at an acceptable level.

Accepted Answer

A) True 
 B)False

Question 16

Neural networks require only training data but not validating data.

Accepted Answer

A) True 
 B)False

Question 17

Some business analytics involve starting with many variables,followed by filtering the data by exploring specific combinations of categorical values or numerical range.

Accepted Answer

A) True 
 B)False

Question 18

Treemaps that use color to represent the value of a second variable,thereby increasing the data density of the displays,is an example of chartjunk.

Accepted Answer

A) True 
 B)False

Question 19

Some business analytics are performed by adding variables to see if unforeseen relationships are uncovered.

Accepted Answer

A) True 
 B)False

Question 20

Double-clicking a cell in a PivotTable causes Excel to drill down and display the underlying data in a new worksheet.

Accepted Answer

A) True 
 B)False

Splitting of a node might be followed by pruning if necessary in a classification tree.

SCENARIO 17-1 The table below contains the sparklines for the rates of return (in percentage)for three different stocks from 2007 to 2013. -Referring to Scenario 17-1,the sparklines enable you to conclude that the rates of return of the stock market in general are volatile from 2007 to 2013.

Neural networks use the validating data to uncover a model and then the training data to see if the model can make the correct prediction or classification.

Dashboards may contain all but which of the following?

Data mining is used mostly in the mining industry.

Splitting is always followed by pruning in a classification tree.

Average linkage can be used to measure the distance between clusters in cluster analysis.

The Akaike information criteria (AIC)or the corrected Akaike information criteria (AIC_c)is a measure of the probability that can be attributed to the response that has occurred.

The LogWorth statistic is a measure of the probability that can be attributed to the response that has occurred.

The forward-and-backward computation among the three layers of a multilayer perceptron is repeated until the output layer detects that the difference between the predicted results and the target values has been minimized or is at an acceptable level.

Neural networks require only training data but not validating data.

Some business analytics involve starting with many variables,followed by filtering the data by exploring specific combinations of categorical values or numerical range.

Treemaps that use color to represent the value of a second variable,thereby increasing the data density of the displays,is an example of chartjunk.

Some business analytics are performed by adding variables to see if unforeseen relationships are uncovered.

Double-clicking a cell in a PivotTable causes Excel to drill down and display the underlying data in a new worksheet.

Defining and Collecting Data

Organizing and Visualizing Variables

Numerical Descriptive Measures

Basic Probability

Discrete Probability Distributions

The Normal Distribution and Other Continuous Distributions

Sampling Distributions

Confidence Interval Estimation

Fundamentals of Hypothesis Testing: One-Sample Tests

Two-Sample Tests

Analysis of Variance

Chi-Square and Nonparametric Tests

Simple Linear Regression

Introduction to Multiple Regression

Multiple Regression Model Building

Time-Series Forecasting

A Roadmap for Analyzing Data

Statistical Applications in Quality Management

Decision Making

Getting Started: Important Things to Learn First

Binomial Distribution and Normal Approximation

Filters

Exam 17: Business Analytics

Splitting of a node might be followed by pruning if necessary in a classification tree.

SCENARIO 17-1 The table below contains the sparklines for the rates of return (in percentage)for three different stocks from 2007 to 2013. -Referring to Scenario 17-1,the sparklines enable you to conclude that the rates of return of the stock market in general are volatile from 2007 to 2013.

Neural networks use the validating data to uncover a model and then the training data to see if the model can make the correct prediction or classification.

Dashboards may contain all but which of the following?

Data mining is used mostly in the mining industry.

Splitting is always followed by pruning in a classification tree.

Average linkage can be used to measure the distance between clusters in cluster analysis.

The Akaike information criteria (AIC)or the corrected Akaike information criteria (AICc)is a measure of the probability that can be attributed to the response that has occurred.

The LogWorth statistic is a measure of the probability that can be attributed to the response that has occurred.

The forward-and-backward computation among the three layers of a multilayer perceptron is repeated until the output layer detects that the difference between the predicted results and the target values has been minimized or is at an acceptable level.

Neural networks require only training data but not validating data.

Some business analytics involve starting with many variables,followed by filtering the data by exploring specific combinations of categorical values or numerical range.

Treemaps that use color to represent the value of a second variable,thereby increasing the data density of the displays,is an example of chartjunk.

Some business analytics are performed by adding variables to see if unforeseen relationships are uncovered.

Double-clicking a cell in a PivotTable causes Excel to drill down and display the underlying data in a new worksheet.

Defining and Collecting Data

Organizing and Visualizing Variables

Numerical Descriptive Measures

Basic Probability

Discrete Probability Distributions

The Normal Distribution and Other Continuous Distributions

Sampling Distributions

Confidence Interval Estimation

Fundamentals of Hypothesis Testing: One-Sample Tests

Two-Sample Tests

Analysis of Variance

Chi-Square and Nonparametric Tests

Simple Linear Regression

Introduction to Multiple Regression

Multiple Regression Model Building

Time-Series Forecasting

A Roadmap for Analyzing Data

Statistical Applications in Quality Management

Decision Making

Getting Started: Important Things to Learn First

Binomial Distribution and Normal Approximation

Filters

The Akaike information criteria (AIC)or the corrected Akaike information criteria (AIC_c)is a measure of the probability that can be attributed to the response that has occurred.